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US 11,634,027 B2Granted
Motor vehicle transmission with a power take-off
AssigneeZF Friedrichshafen AG
InventorMichael Epple
Life of this patent
Estimating the term…
Abstract
A motor vehicle transmission including an input shaft (AN), an output shaft (AB), a power take-off (1) and a hydraulic pump (2). The hydraulic pump (2) serves to supply the motor vehicle transmission with hydrodynamic working pressure. The power take-off (1) has a power take-off gearwheel (1A). The power take-off gearwheel (1A) is connected to the hydraulic pump (2) in order drive the hydraulic pump (2).
Claims16
A motor vehicle transmission comprising:
- an input shaft,
- an output shaft,
- a power take-off,
- a hydraulic pump,
- a transmission housing having a first intermediate wall that separates an interior of the transmission housing into at least a power take-off space and a transmission space,
- the hydraulic pump serving to supply the motor vehicle transmission with hydraulic working pressure,
- the power take-off having a power take-off gearwheel, and the power take-off gearwheel being connected to the hydraulic pump in order to drive the hydraulic pump, and
- the hydraulic pump being fixed to the first intermediate wall such that the hydraulic pump and the power take-off gearwheel are arranged within the transmission housing in the power take-off space.
5 more elements
A motor vehicle transmission comprising:
- transmission housing having an interior area in which an input shaft and an output shaft extend along an axis;
- first and second intermediate walls that contact an inside of the transmission housing and extend radially inward therefrom and spatially divide the interior area of the transmission housing axially into a torque converter space, a power take-off space and a transmission space;
- a hydrodynamic torque converter being located within the torque converter space on an input side of the transmission, and the second intermediate wall axially separating the torque converter space from the power take-off space;
- transmission shifting elements, transmission gearwheels and transmission shafts being located within the transmission space on an output side of the transmission, the first intermediate wall axially separating the transmission space from the power take-off space, and at least the transmission shifting element being actuatable for selectively engaging various transmission gear ratios;
- a power take-off and a hydraulic pump being located within the power take-off space which axially extends from the first intermediate wall to the second intermediate wall, the hydraulic pump being rotationally drivable to supply hydraulic working pressure to the transmission shifting elements for actuation thereof;
- the power take-off having a power take-off gearwheel which is rotationally supported by a first axial side of the first intermediate wall within the power take-off space, and the power take-off gearwheel meshes with an intermediate gearwheel of the power take-off to rotationally drive the power take-off;
- the hydraulic pump being fixed to the first axial side of the first intermediate wall within the power take-off space, and the hydraulic pump is connected to and rotationally driven by the power take-off gearwheel.
4 more elements
Dependencies are inferred from the claim text.